Diesel mechanic salary in Trenton, NJ
Updated September 27, 2026 with BLS data from May 2025
Diesel mechanics in the Trenton–Princeton, NJ area earn a median of $69,480 a year, or $33.40 an hour, according to May 2025 BLS data. The top 10% earn more than $89,330. Across all of New Jersey, the median is $72,340, so Trenton pays 4% less than the state as a whole.
- Entry-level starting pay (estimate)
- $23.41/hr
- Jobs in this area
- 280
- After cost of living
- $67,340
- Median hourly pay
- $33.40/hr
- vs U.S. median
- +12%
- vs New Jersey median
- −4%
- Mean (average) pay
- $69,330 a year · $33.33 an hour
Pay by percentile
What diesel mechanics in Trenton, NJ earn at each point of the pay range, May 2025: 10% earn less than the 10th percentile, half earn less than the median, and 10% earn more than the 90th.
| Percentile | Hourly | Yearly |
|---|---|---|
| 10th percentile | $23.41 | $48,690 |
| 25th percentile | $29.01 | $60,340 |
| Median (50th) | $33.40 | $69,480 |
| 75th percentile | $37.11 | $77,180 |
| 90th percentile | $42.95 | $89,330 |
BLS Occupational Employment and Wage Statistics, May 2025. BLS yearly figures are the hourly wage times 2,080 hours.
How Trenton, NJ compares
- Trenton ranks 2nd of 6 New Jersey metro areas for diesel mechanic pay.
- Diesel mechanics are less concentrated in the Trenton area than nationally: 1.2 of every 1,000 jobs, 0.63 times the U.S. share.
Other New Jersey metro areas
Other trades in Trenton, NJ
Questions
- Do diesel mechanics make more in Trenton or New York?
- New York pays more: the median is $69,480 in Trenton and $75,780 in New York, a 8% difference.
About this data
Wages are from the U.S. Bureau of Labor Statistics Occupational Employment and Wage Statistics survey for May 2025, occupation 49-3031 (Bus and Truck Mechanics and Diesel Engine Specialists), area code 45940 (Trenton-Princeton, NJ). BLS counts wage and salary workers only, so self-employed diesel mechanics and business owners aren't included. The cost-of-living figure divides the median by the Bureau of Economic Analysis Regional Price Parity for 2024 (103.2, where the U.S. average is 100). Page updated September 27, 2026. How we calculate these figures